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802.11b and 802.11g access points. It will not detect
802.11a signals.

Site survey

 - Use the scanner to determine where your

home or office coverage extends, and where the optimal
locations for use of the network are.

Security

 - The scanner can be used to determine whether

your home or office network is "leaky". The device can
detect whether your access point's signal extends beyond
your walls, and whether it is secured. The scanner can also
help you detect "rogue" access points.

About WiFi Networks

The scanner provides the following information about a
WiFi network: SSID, signal strength, encryption status and
channel.

SSID

The SSID is the name given a network by a network
operator to distinguish the network from other networks. An
SSID may be distinctive enough that it will allow you to
distinguish a public network from a network that is intended
for public use. Public WiFi service providers often configure
their networks to display an SSID that is similar to the
service provider's name.

For example, if the scanner shows a network with a
"wayport_access" SSID or a "t-mobile" SSID, you are likely
to be able to access a commercial WiFi hotspot, as these
SSIDs are commonly used by Wayport and T-Mobile, two
commercial hotspot providers.

By contrast, a "default" SSID or an SSID that contains the
name of an access point manufacturer may indicate that a
network is operated by a home user that has not specifically
configured the SSID of his or her network.

With most access points, it is possible to disable the
broadcast of an SSID. If the scanner detects an access

Summary of Contents for ACW20US

Page 1: ...AN AMSTERDAM SINGAPORE LONDON PARIS NEW YORK LOS ANGELES TORONTO HONG KONG SYDNEY Targus WiFi Scanner USER S GUIDE Making Your Mobile Life Easier Making Your Mobile Life Easier Visit our Web site at www targus com Features and specifications are subject to change without notice 2005 Targus Group International Inc and Targus Inc ACW20US 400 0204 001A ...

Page 2: ...isplay of SSID Signal Strength Secure Open and Channel Number Installing the Batteries 1 Slide the battery door toward the top of the housing 2 Insert two AAA batteries as indicated The Targus scanner features a battery strength indicator that will display when battery power is low and an automatic shut off to maximize battery life Operating the WiFi Scanner 1 Push the activation button 2 The WiFi...

Page 3: ... access point is present the scanner will display No AP Found 4 The device will display any located access points for approximately 30 seconds After such time the device will power down automatically The device does not continuously scan You must press the Activate button each time you want updated information on local access points 5 If the device displays Low Battery the batteries should be repl...

Page 4: ... to distinguish the network from other networks An SSID may be distinctive enough that it will allow you to distinguish a public network from a network that is intended for public use Public WiFi service providers often configure their networks to display an SSID that is similar to the service provider s name For example if the scanner shows a network with a wayport_access SSID or a t mobile SSID ...

Page 5: ...e network can be accessed The scanner displays Secure when a given network is encrypted and Open when the network is not encrypted Network operators use WEP to prohibit roaming WiFi users from accessing a network A network operator who has enabled WEP is sending a clear signal to a roaming user that the network is not intended to be accessed by outsiders You can use the scanner to verify that your...

Page 6: ... able to get a better sense of the strength of signal available to you The WiFi Scanner seems to be sticking on a single SSID In some WiFi implementations that use multiple access points on the same network with the same SSID the scanner may bounce from one access point to another with the same SSID This appears to the user as though the scanner is stuck on a single network This problem will corre...

Page 7: ...rgus warrants this product to be free from defects in materials and workmanship for one year If your Targus accessory is found to be defective within that time we will promptly repair or replace it This warranty does not cover accidental damage wear and tear or consequential or incidental loss Under no conditions is Targus liable for loss of or damage to a computer nor loss of or damage to program...

Page 8: ... in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Move the computer away fro...

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